Motor-vehicle.



J. D. ALLEN &-J. A. GO-NLY.

MOTOR VEHICLE.

APPLICATION FILED JUNE 7, 1907.

983, 1.07. Patented Jan. 31, 19.11.

2 SHEETS-SHEET}.-

Conly J. 1). ALLEN & J. A. CONLY.

MOTOR VEHIGLB.- APPLiOATION FILED JUNEI'L'IQO'ZI. 983,197, PatentedJal'L3l, 1911.

THE NORRIS FETERS ca, wnsmucrorv, 1:. c4

TTNTTED era JOHN D. ALLEN AND JOHN A. CONLY, OF PHILADELPHIA,PENNSYLVANIA.

MOTOR- eaaiov.

Application filed June 7 To all whom it may concern;

Be it known that we, JoiiN D. ALLnN and JOHN A. CoNLY, citizens of theUnited: States, residing at Philadelphia, in the county of Philadelphiaand State of Pennsylvania, have invented certain new and usefulImprovements in Motor- Vehicles, of which the following is aspecification.

Our invention relates to motor vehicles, and more particularly to thosein which certain elements of the transmission gear and the brakemechanism are controlled by fluidpressure.

The object of our invention is to provide a supplementary mechanism,likewise operated by fluid-pressure, which can be manually actuated tocontrol said elements of the transmission gear and the brake mechanismto make an emergency stop.

In the embodiment of our invention herein described and illustrated, therear axle of the vehicle is composed of three sections,the central onebeing driven by the motor, and the two outer sections, which areconnected to the driven wheels of the vehicle, being driven by saidcentral section through clutches, which are thrown out by fiuid pressurecontrolled by the movements of the steering-post, so that when thevehicle makes a turn, one or the other of the driven wheels isunclutched, while the brakes are thrown on by independentmanually-controlled fluidpressure mechanism.

The emergency stop mechanism which constitutes our present invention,comprises manuallyoperated means which acts, through fluid-pressure, todisengage both said clutches and throw on the brakes, and is entirelyunaffected by the ordinary operation.

The invention will now be described in detail, reference being had tothe accompanying two sheets of drawings, in which- Figure 1, is a planview of the running gear of a motor vehicle equipped with our invention.Fig. 2, is an enlarged detail view of the emergency stop mechanism. Fig.3, is a partial side view of an automobile showing the emergency stopmechanism in end view, and Fig. 4, is an enlarged view of one of therear axle clutches.

In these views 1, 1 represent the front wheels of an automobile, and 2,2 the rear, driven wheels thereof, the axles of said wheels beingsupported and connected by the frame work, indicated as a whole by 3.

Specification of Letters Patent.

VEHICLE.

Patented Jan. 31, 1911.

, 1907. Serial No. 377,681.

4 represents the casing of the transmission gear, the power beingapplied to the sprocket wheel 5, from the shaft of which it istransmit-ted to the driving shaft 6 of the rear axle by a train ofgearing, not shown, contained in casing 4. Said driving-shaft 6transmits the power to the shafts 7 of the casing 4 and one of which isillustrated in Fig. 4. The sliding member of the clutch is disengagedfrom the fixed member by the pneumatic diaphragm motor 9, and isreengaged by the spring 10. Fluid pressure is transmitted to thepneumatic motors 9 by the pipes 11, 11, leading to the valves 13, 13,which are controlled by the steering post 15.

14 represents an air reservoir, the pressure in which is maintained byany suitable means, and which is connected by pipes 16 to each of saidvalves 13. The construction of said valves is clearly shown in Fig. 2.Each of them comprises a chamber 17 into which the inlet pipe 16 opens,and which is closed by a valve 18, normally held to its seat by a spring19, and a chamber 20, from which the outlet pipe 11 leads, and which hasan air exhaust passage 21, adapted to be closed by a valve 22, carriedby the stem 23 of the valve 18. When the valve 18 is closed on its seat,the valve 22 is open and vice versa. The stem 23 extends beyond thevalve 18 outside of the valvecasing, and is pivotally connected to thelever 24, pivoted adjacent to the steering post, which latter carries acam 25, which acts on the adjacent arms of levers 24 when the steeringpost is turned, to raise the valves 18 from their seats. In the positionillustrated in Fig. 2, the right hand valve 18 is open and air istherefore being admitted from the pipe 16 to the pipe 11, leading to theright hand clutch on the rear axle, while the left hand valve 18 isclosed and the corresponding valve 22 is open, so that the air isescaping from pipe 11 to the atmosphere.

26 represents a pneumatic motor for actuating the brake sleeves 27,which are connected by rods 28 with a rock shaft 29 operativelyconnected to the piston of the motor 26. Normally, this motor 26 ismanually operated from a valve 30, mounted on the dash board of thevehicle, or at some point convenient to the drivers seat, and connectedto said motor by means of a pipe 31, said valve 30 being supplied withair from the reservoir 14 by a pipe 32. This wheels 2 through clutches8, inclosed in the valve is similar in every respect to the valves 13,above described, except that in place of the valve stem being connectedto a lever,

g on, without its being necessary to first dis- 1 engage any clutch orgear, as is usually the such as 24, it is provided with a head or pushbutton 33, by which it is manually operated when it is desired to setthe brakes.

Ne come now to the description of the emergency stop which constitutesthe essence of the present invention. This mechanism is so constructedand arranged that by a movement of the drivers foot all the valves canbe simultaneously operated, which results in disconnecting both the rearwheels from the driving shaft and in setting the brakes. It consists ofa rock-shaft 35 having an arm or treadle 36 connected thereto,conveniently located to be actuated by the foot. Said rock-shaft carriestwo spiral cams 39, which respectively act against two levers a0 pivotedat L3 to the bearings of the rock-shaft, or to some other convenientpoint, and surrounding said shaft loosely. The free ends of said leversare bent and engage in slots 45 formed in lugs 47 projecting from theleversQa. In addition the rockshaft 35 carries an arm 50, arranged tobear against a collar or head on the stem of the valve 30, so that whenrock-shaft 35 is rocked, said valve 30 will be actuated to admitpressure to the brakemotor 26.

It will be seen that the movements of the levers 24 by the cam 25 on thesteering post will not affect the levers since the slots in the lugs l7simply slide over the bent ends of said levers; but as soon as the shaftis rocked said levers 40 will be swung outwardly by the cams 89, andconsequently both levers 24 will be swung on their pivots to raise thevalves 18 from their seats and admit the air to pipes 11 therebythrowing out the clutches of the rear wheels. At the same time, the arm50, secured to the rockshaft, will open valve 30 and admit air to thebrake-motor 26.

By the above described mechanism we provide means wherebythe drivenwheels of the vehicle can be lnstantly disconnected from the motor andthe brakes be thrown case. It makes no difference on what speed the caris running, a simple pressure with the foot on the emergency stop pedalwill act to throw off the power and apply the brakes.

Having thus described our invention, what we claim is 1. In a motorvehicle, the combination with the driven wheels thereof, of a drivingshaft therefor, independent clutches to connect said wheels and shaft,an independent pneumatic motor to actuate each clutch, a valve tocontrol the pressure-supply to each motor, means on the steering post tocontrol said valves, and independent means to actuate said valvesindependently of the post.

2. In a motor vehicle, the combination with the driven wheels thereof,of clutches to connect said wheels to the source of power, a pneumaticmotor for each clutch, a valve for each motor controlled by themovements of the steering post and independent means to actuate saidvalves simultaneously.

3. In a motor vehicle, the combination with the driven wheels thereof,of clutches to connect said wheels to the source of power, a pneumaticmotor for each clutch, a valve for each motor controlled by themovements of the steering post, a brake mechanism, a pneumatic motortherefor, a manually controllable valve for said motor, and independent,means for actuating all of said valves simultaneously to disengage saidclutches and apply the brakes.

In testimony whereof we have affixed our signatures, in presence of twowitnesses.

JOHN D. ALLEN. JOHN A. CONLY. IVitnesses HENRY H. FARLEY, ARTHUR J.WILLs.

